Portion of a shoe upper



FIG. 1 is a perspective view of a portion of a shoe upper showing our new design;

FIG. 2 is a side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof.

The broken line showing of stripes immediately adjacent to the shaded area represent an unclaimed extension of the design. The broken line showing of the remainder of the shoe is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a shoe upper, as shown and described. 